Operating systems

CrutziPlayer is a standalone player for NPAPI-based browser plugins (e.g., Flash). It provides external, hardware accelerated fullscreen scaling using XComposite, Cairo, and XFixes. It's a good solution, for example, for playing browser games fullscreen on Linux, as it autodetects the original .swf content size.

LibZeta (not related to Zeta) is a CISC instruction set simulation library with a very small but powerful instruction set. The emulator is written in C, with a C++ frontend. Porting it to a non-hosted environment is on the horizon.